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cmd/asm: macro invocation cannot span more than one line #54108

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WojciechMula opened this issue Jul 28, 2022 · 1 comment
Closed

cmd/asm: macro invocation cannot span more than one line #54108

WojciechMula opened this issue Jul 28, 2022 · 1 comment
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compiler/runtime Issues related to the Go compiler and/or runtime. FrozenDueToAge

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@WojciechMula
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What version of Go are you using (go version)?

$ go version
go version go1.18.1 linux/amd64

What did you do?

I tried to assemble the following asm code with a macro:

#define TRIPLE_U64(name, x, y, z)          \
    DATA name<>+(0)<SB>, x                 \
    DATA name<>+(8)<SB>, y                 \
    DATA name<>+(16)<SB>, z                \
    GLOBAL name<>(SB), RODATA|NOPTR, 24

TRIPLE_U64(test,
    $1,  // first
    $2,  // second
    $3   // third
)

What did you expect to see?

No errors.

What did you see instead?

Error: unterminated arg list invoking macro: TRIPLE_U64
@gopherbot gopherbot added the compiler/runtime Issues related to the Go compiler and/or runtime. label Jul 28, 2022
@cherrymui
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The macro syntax the Go assembler supports is limited. It is intentional to not support all the syntax the C preprocessor. (And, if you run your example in the C preprocessor the result you get might not be what you expected.) Closing as working as intended. Thanks.

@cherrymui cherrymui closed this as not planned Won't fix, can't repro, duplicate, stale Jul 28, 2022
@golang golang locked and limited conversation to collaborators Jul 28, 2023
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@WojciechMula @gopherbot @cherrymui